Pentium 4 is a product in direct confrontation with AMD Athlon processor series. Performances of P4 "Willamette" core are not on the level that was expected from a leading product, which should hold leadership in the field of CPUs for PC platforms. With emergence of P4 processor with "Northwood" core the situation should get better and Intel should be back in the game finally. P4 was firstly introduced in Socket 423 package and after a while it got the final Socket 478 standard. On the market today, "old" Socket 423 processors can still be found for a very satisfactory price. However, one should have in mind there're less motherboards every day, which support Socket 423 CPU "package". Situation on the motherboard and chipset market with Intel Pentium 4 processor support is very similar to the situation in Socket A sector. Almost all major names are present, such as VIA Technologies, SiS (Silicon Integrated Systems), ALi (Acer Laboratories Incorporated) and, naturally, Intel itself. Hence, we shall make a brief review of chipsets specified for Intel P4 platforms.